71643066460 has 48 divisors (see below), whose sum is σ = 177489930240. Its totient is φ = 23770969920.

The previous prime is 71643066457. The next prime is 71643066487. The reversal of 71643066460 is 6466034617.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8249470 + ... + 8258149.

It is an arithmetic number, because the mean of its divisors is an integer number (3697706880).

Almost surely, 2^71643066460 is an apocalyptic number.

71643066460 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

71643066460 is an abundant number, since it is smaller than the sum of its proper divisors (105846863780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71643066460 is a wasteful number, since it uses less digits than its factorization.

71643066460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16507666 (or 16507664 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 71643066460 in words is "seventy-one billion, six hundred forty-three million, sixty-six thousand, four hundred sixty".